i've heard of draggin' elbow's but rubbing yer brain bucket is ridiculous!

pretty cool vid of some solid track riders. skip to ~1:00 for the helmet scrubbin'

http://www.youtube.com/watch?v=4Ov43cWkYIA

 

Wow...  I am new to riding.  I didn't even know that bikes/bikers were capable of this 

that was bad ass

I wonder why the track let him wear that ghillie suit, even if he had leathers under it. I was under the impression that one of the many reasons why tracks make you wear leathers is so that nothing is in danger of falling off or getting caught in the chain or other moving parts... Seems to be a potential liability issue.

^ good point, never thought of it as a hazard, but could definitely see it happening